Precoding configuration and indication for simultaneous pusch to multiple trps

The method addresses the challenge of simultaneous PUSCH transmissions to multiple TRPs in 5G NR by configuring and indicating appropriate precoding and SRS resources, enhancing transmission efficiency and effectiveness.

EP4496258A2Pending Publication Date: 2025-01-22MEDIATEK INC
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Patent Information

Application Number
EP2024217537
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-22
Filing Date
2023-09-26
Publication Date
2025-01-22

AI Technical Summary

Technical Problem

Current 5G New Radio (NR) technologies face challenges in efficiently managing simultaneous PUSCH transmissions to multiple TRPs, particularly in configuring and indicating appropriate precoding and SRS resources.

Method used

The method involves a user equipment (UE) receiving configurations for multiple SRS resource sets and determining the sizes of SRI and TPMI fields based on maximum numbers of layers and SRS resources, allowing for accurate decoding and simultaneous PUSCH transmissions to multiple TRPs.

Benefits of technology

This approach enhances the efficiency and effectiveness of PUSCH transmissions by enabling precise configuration and indication of precoding and SRS resources, thereby improving overall system performance in multi-TRP scenarios.

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Abstract

A UE receives configurations of first and second configured SRS resource sets for non-codebook based transmission. The UE receives DCI containing a first SRI field and a second SRI field. The first SRI field indicates an SRS resource of a first indicated SRS resource set. The second SRI field indicates an SRS resource of a second indicated SRS resource set. A size of the first SRI field is determined based on a first maximum number of layers, a second maximum number of layers, a third maximum number of layers, a first number of SRS resources in the first indicated SRS resource set, and a second number of SRS resources in the second indicated SRS resource set. A size of the second SRI field is determined based on the third maximum number of layers and the second number of SRS resources in the second indicated SRS resource set.
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Citation Information

Patent Citations

  • Precoding Method for Simultaneous PUSCH to Multiple TRP

    US63377562P0